SNVSBK9D
November 2019 – September 2022
LM63635-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
Absolute Maximum Ratings
7.1
ESD Ratings
7.2
Recommended Operating Conditions
Thermal Information
Electrical Characteristics
Timing Characteristics
Switching Characteristics
7.3
System Characteristics
7.4
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Sync/Mode Selection
8.3.2
Output Voltage Selection
8.3.3
Switching Frequency Selection
8.3.3.1
Spread Spectrum Option
8.3.4
Enable and Start-up
8.3.5
RESET Flag Output
8.3.6
Undervoltage Lockout and Thermal Shutdown and Output Discharge
8.4
Device Functional Modes
8.4.1
Overview
8.4.2
Light Load Operation
8.4.2.1
Sync/FPWM Operation
8.4.3
Dropout Operation
8.4.4
Minimum On-time Operation
8.4.5
Current Limit and Short-Circuit Operation
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Choosing the Switching Frequency
9.2.2.2
Setting the Output Voltage
9.2.2.2.1
CFF Selection
9.2.2.3
Inductor Selection
9.2.2.4
Output Capacitor Selection
9.2.2.5
Input Capacitor Selection
9.2.2.6
CBOOT
9.2.2.7
VCC
9.2.2.8
External UVLO
9.2.2.9
Maximum Ambient Temperature
9.2.3
Full Feature Design Example
9.2.4
Application Curves
9.2.5
EMI Performance Curves
9.3
What to Do and What Not to Do
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
Ground and Thermal Considerations
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Device Nomenclature
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Receiving Notification of Documentation Updates
12.4
Support Resources
12.5
Trademarks
12.6
Glossary
12.7
Electrostatic Discharge Caution
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PWP|16
MPDS371A
DRR|12
MPSS085
Thermal pad, mechanical data (Package|Pins)
PWP|16
PPTD262C
DRR|12
PPTD366
Orderable Information
snvsbk9d_oa
snvsbk9d_pm
12.6
Glossary
TI Glossary
This glossary lists and explains terms, acronyms, and definitions.